2
2. Specifications
AD-4329A-03
RS-422 / 485 interface
Transmission Asynchronous,
half-duplex
Baud rate
600, 1200, 2400, 4800, 9600 bps
Data bits
7 bits
Parity bits
1 bit, Even
Start bit
1 bit
Stop bit
1 bit
Code ASCII
Terminator
CR LF (CR: 0Dh, LF: 0Ah)
Number of indicators to be connected
Max.10
Terminal
M3 compression terminal
Circuit and Pin Connection
Bit Format
Signal
RS-422 / RS-485
1
SDA < SDB
RDA < RDB
0
SDA > SDB
RDA > RDB
Switching between RS-422 and RS-485
Switching between RS-422 and RS-485 is performed by the function setting F-47.
For details on the setting procedure, refer to the AD-4329A instruction manual.
Item Parameter
Description
f-47
0
RS-422 (Factory setting)
RS-422 / RS-485
f-47
1
RS-485
Data format and commands are the same as those of RS-232C. For details, refer to the description
of RS-232C in the AD-4329A instruction manual.
